Wayne I am building a coax relay to be activated using the DIGOUT1 contacts. I want the contacts to ground the base of a PNP transistor TIP 42 through a series 800 ohm resistor.
I now have a cable for the 15 pin plug with connections to pin 5 and 11. When DIGOUT1 is turned to ON on 20 meters I get a 220 ohm resistance between pin 11 and 5. I expected to get a short between them and to ground. Will this 220 ohm resistance in series with the 800 resistor in my switch be capable of causing the transistor to swamp causing the emitter and cathode to connect and go to ground to enable the 12 volt relay coil. Any idea why pin 11 does not go to ground and where the 220 ohms is coming from . Thanks Van W4GIW ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
